@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&family=Space+Grotesk:wght@500;700&display=swap");

:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-muted: #f1f3f6;
  --text: #12161f;
  --text-muted: #556070;
  --line: #dde3ec;
  --line-strong: #c6d0dd;
  --accent: #111827;
  --accent-soft: #e8eef8;
  --success: #0f766e;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(12, 16, 24, 0.05);
  --shadow-md: 0 12px 30px rgba(15, 24, 36, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1300px 420px at 20% -180px, #d8e4f7 0%, transparent 65%),
    radial-gradient(900px 340px at 95% -140px, #e5f2ef 0%, transparent 70%),
    var(--bg);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
.button {
  font-family: inherit;
  font-size: 0.97rem;
  border-radius: 0;
  appearance: none;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  padding: 11px 15px;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

button:hover,
.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(17, 24, 39, 0.2);
}

.actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer {
  margin-top: 16px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ── Landing layout ───────────────────────────────────────── */

.landingMain {
  max-width: 1230px;
  margin: 0 auto;
  padding: 24px 20px 44px;
}

.landingTopbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 42px;
  padding-bottom: 14px;
  border-bottom: 1px solid #18181b;
}

.landingBrand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.92rem;
}

.brandMark {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: #ffffff url("/brand/hero-visual.png") center / contain no-repeat;
  border: 1px solid #111111;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.landingNavLinks {
  display: inline-flex;
  gap: 16px;
  flex-wrap: wrap;
}

.landingMenuButton {
  display: none;
  border: 1px solid #18181b;
  background: #ffffff;
  border-radius: 10px;
  width: 42px;
  height: 42px;
  padding: 9px 8px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.landingMenuButton span {
  display: block;
  width: 22px;
  height: 2px;
  background: #111111;
  border-radius: 99px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.landingMenuButton.isOpen span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.landingMenuButton.isOpen span:nth-child(2) {
  opacity: 0;
}

.landingMenuButton.isOpen span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.landingNavLink {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #27272a;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.landingNavLink:hover {
  color: #dc2626;
  border-color: #dc2626;
}

/* ── Hero ─────────────────────────────────────────────────── */

.landingHero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}

.landingHeroCopy {
  max-width: 60ch;
}

.landingHeroRail {
  display: grid;
  gap: 14px;
  justify-items: center;
}

.landingHeroVisual {
  margin: 0;
  width: 100%;
  max-width: none;
  display: flex;
  justify-content: center;
  align-items: center;
}

.landingHeroVisual img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.1));
}

.landingKicker {
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #b91c1c;
  font-size: 0.79rem;
}

.landingTitle {
  margin: 10px 0 12px;
  font-size: clamp(2.1rem, 5vw, 4.6rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  max-width: 13ch;
  font-family: "Space Grotesk", sans-serif;
}

.landingLead {
  margin: 0;
  color: #27272a;
  font-size: 1.03rem;
  line-height: 1.65;
}

.landingActions {
  justify-content: flex-start;
  align-self: flex-start;
  margin-top: 24px;
}

.landingButton {
  background: #111111;
  border-color: #111111;
}

.landingButton:hover {
  box-shadow: 0 10px 18px rgba(17, 17, 17, 0.22);
}

.landingGhostButton {
  border-color: #dc2626;
  color: #dc2626;
  background: #fff;
}

.landingGhostButton:hover {
  box-shadow: 0 8px 16px rgba(220, 38, 38, 0.15);
}

/* ── Signals ──────────────────────────────────────────────── */

.landingSignals {
  margin-top: 54px;
  border-top: 1px solid #18181b;
}

.landingSignalRow {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
  padding: 20px 0;
  border-bottom: 1px solid #d4d4d8;
}

.landingSignalRow h2 {
  margin: 0;
  font-size: 1rem;
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.landingSignalRow p {
  margin: 0;
  color: #3f3f46;
  line-height: 1.6;
}

/* ── How it works ─────────────────────────────────────────── */

.landingFlow {
  margin-top: 40px;
  display: grid;
  grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
  gap: 16px;
  align-items: start;
}

.landingFlow h2 {
  margin: 0;
  font-size: 1rem;
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.landingFlow ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
  color: #27272a;
  line-height: 1.6;
}

/* ── Footer ───────────────────────────────────────────────── */

.landingFooter {
  margin-top: 34px;
  padding-top: 14px;
  border-top: 1px solid #e4e4e7;
  color: #a11d1d;
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.74rem;
}

/* ── Responsive ───────────────────────────────────────────── */

@media (max-width: 940px) {
  .landingHero,
  .landingFlow,
  .landingSignalRow {
    grid-template-columns: 1fr;
  }

  .landingActions {
    justify-content: flex-start;
    margin-top: 8px;
  }

  .landingHeroRail {
    justify-items: start;
  }
}

@media (max-width: 680px) {
  .landingMain {
    padding: 18px 14px 34px;
  }

  .landingTopbar {
    align-items: flex-start;
    gap: 12px;
    position: relative;
    margin-bottom: 26px;
  }

  .landingMenuButton {
    display: inline-flex;
    margin-left: auto;
  }

  .landingNavLinks {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    display: none;
    width: min(230px, 100%);
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    border: 1px solid #18181b;
    border-radius: 12px;
    background: #ffffff;
    box-shadow: 0 14px 26px rgba(0, 0, 0, 0.08);
    z-index: 5;
  }

  .landingNavLinks.isOpen {
    display: flex;
  }

  .landingNavLink {
    width: 100%;
    font-size: 0.8rem;
    padding: 6px 2px;
  }

  .landingTitle {
    max-width: 12ch;
  }

  .landingActions {
    width: 100%;
    margin-top: 14px;
  }

  .landingButton {
    display: inline-flex;
    width: 100%;
    min-height: 52px;
    justify-content: center;
    align-items: center;
    text-align: center;
    line-height: 1.2;
    font-size: 0.98rem;
  }
}

/* ── Landing section links ────────────────────────────────── */

.landingSectionLink {
  color: inherit;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

.landingSectionLink:hover {
  color: #dc2626;
}

/* ── Content listing ──────────────────────────────────────── */

.contentHeader {
  margin-bottom: 32px;
}

.contentHeader h1 {
  margin: 0 0 8px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
}

.contentHeader p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

.contentList {
  margin-top: 8px;
  border-top: 1px solid #18181b;
}

.contentCard {
  display: grid;
  grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid #d4d4d8;
  transition: opacity 0.1s ease;
}

.contentCard:hover {
  opacity: 0.75;
}

.contentCard h2 {
  margin: 0;
  font-size: 1rem;
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contentCard p {
  margin: 0;
  color: #3f3f46;
  line-height: 1.6;
  font-size: 0.97rem;
}

@media (max-width: 680px) {
  .contentCard {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

.emptyState {
  color: var(--text-muted);
  font-size: 0.95rem;
  padding: 32px 0;
}

/* ── Prose (rendered markdown) ────────────────────────────── */

.prose {
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
  max-width: 72ch;
}

.proseHeader {
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.proseHeader h1 {
  margin: 0 0 8px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.proseHeader p {
  margin: 0;
  color: var(--text-muted);
}

.proseMeta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.proseMeta a {
  color: #dc2626;
}

.proseMeta a:hover {
  text-decoration: underline;
}

.prose h1,
.prose h2,
.prose h3,
.prose h4 {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.02em;
  margin: 1.8em 0 0.5em;
  line-height: 1.2;
}

.prose h1 { font-size: 1.8rem; }
.prose h2 { font-size: 1.3rem; }
.prose h3 { font-size: 1.1rem; }

.prose p {
  margin: 0 0 1em;
}

.prose ul,
.prose ol {
  margin: 0 0 1em;
  padding-left: 1.5em;
}

.prose li {
  margin-bottom: 0.35em;
}

.prose code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.87em;
  background: #eef2f7;
  border-radius: 5px;
  padding: 2px 5px;
}

.prose pre {
  background: #1a1f2e;
  color: #e2e8f0;
  border-radius: var(--radius-md);
  padding: 18px 20px;
  overflow-x: auto;
  margin: 0 0 1.2em;
  font-size: 0.88rem;
  line-height: 1.6;
}

.prose pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

.prose blockquote {
  margin: 0 0 1em;
  padding: 12px 16px;
  border-left: 3px solid var(--line-strong);
  color: var(--text-muted);
  font-style: italic;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 2em 0;
}

.prose a {
  color: #1d4ed8;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.prose a:hover {
  color: #dc2626;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.2em;
  font-size: 0.93rem;
}

.prose th,
.prose td {
  text-align: left;
  padding: 8px 12px;
  border: 1px solid var(--line);
}

.prose th {
  background: var(--surface-muted);
  font-weight: 600;
}

.backLink {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.backLink:hover {
  color: var(--text);
}